Manufacturing method for portable data carriers

ABSTRACT

A method for manufacturing a portable data carrier by means of a continuous manufacturing method, comprises the steps: providing at least one foil as a rolled good, unrolling at least one first foil, with at least a first foil being coated at least partly with an adhesive on at least one side, with at least the first foil being scored on at least one side along at least one creasing edge, with at least the first foil being folded up in precise fit along at least one creasing edge and bonded, with the foil being folded up in the direction of the side which is coated with adhesive, with the side coated with adhesive being arranged on the opposite side of the foil which has at least one scored creasing edge along which it is folded.

BACKGROUND

The invention describes a manufacturing method for portable datacarriers.

Portable data carriers, such as for example SIM cards, credit cards,health cards, identity cards etc. are usually manufactured by aninjection molding method or a lamination method.

SIM cards are normally manufactured by an injection molding method whichis very expensive and means a high material expenditure. The highexpenditure is due to the fact that SIM cards are often broken off fromcards in ID-1 format. Therefore, the largest part of the ID-1 card isthrown away after the breaking off of the SIM card. Furthermore, themanufacture of, for example, credit cards is more or less a single-pieceproduction. The quasi single-piece production entails a sequentialmanual processing which is very time-intensive and cost-intensive.

When portable data carriers are manufactured by means of laminationmethod, due to high temperatures, e.g. between 120 and 160 degreesCelsius, and high pressures, e.g. between 100 and 250 bar, thecomponents of the data carrier are subjected to a high load. This oftenleads to a damage of the components, such as for example antenna coils,chips. Components sensitive to such loads, such as for example displayelements, therefore cannot be processed by means of a lamination method.Further, the lamination method takes a relatively long time until thedifferent foil layers have permanently combined under pressure andtemperature.

From the prior art there is known a method for manufacturing a portabledata carrier by means of a continuous manufacturing method which as afirst step provides at least one foil as a rolled good and unrolls atleast one first foil for the method. The at least one first foil iscoated at least partly with an adhesive on at least one side. Theadhesive may be liquid or paste-like. Further, the adhesive may beprocessed e.g. also in the form of a double-sided adhesive tape or inany other suitable form. Then, at least the first foil is scored on atleast one side along at least one creasing edge. After scoring, at leastthe first foil is folded up in precise fit along at least one creasingedge and bonded. In doing so, the foil is so folded that the foil isfolded in the direction of the side which is coated with adhesive. Theside coated with adhesive here is arranged on the opposite side of thefoil which has at least one scored creasing edge along which it isfolded. In the end, at least one data carrier is detached from the atleast one folded and bonded foil, e.g. by means of a laser or a punch ora water jet.

A disadvantage of the prior art is that accordingly manufactured datacarriers can be easily forged.

SUMMARY

Starting out from the prior art, it is the object of the invention tofind a solution which avoids the disadvantage described above.

For achieving the object the invention discloses a method formanufacturing a portable data carrier by means of a continuousmanufacturing method, comprising the steps:

-   -   providing at least one foil as a rolled good,    -   unrolling at least one first foil,    -   with at least the first foil being coated at least partly with        an adhesive on at least one side,    -   with at least the first foil being scored on at least one side        along at least one creasing edge,    -   with at least the first foil being folded up in precise fit        along at least one creasing edge and bonded,    -   with the foil is folded up in the direction of the side which is        coated with adhesive,    -   with the side coated with adhesive being arranged on the        opposite side of the foil which has at least one scored creasing        edge along which it is folded,    -   which is characterized by the fact that on at least one foil at        least a part of a security element and/or at least one security        element is arranged on an arbitrary side of the foil.

An advantageous embodiment example is that the security element isprocessed by feeding it from a roll or as a bulk material.

Another advantageous embodiment example is that the security element isincorporated into an area of the foil, which is coated with adhesive.

Another advantageous embodiment example is that the security element isembossed into at least one foil of the data carrier.

Another advantageous embodiment example is that the security element isarranged on at least one outer side of the data carrier and/or in theinterior of the data carrier.

Another advantageous embodiment example is that the security elementeffects a chemical reaction.

Another advantageous embodiment example is that a scented lacquer, acolor indicator, a catalyst or a test strip is used as a securityfeature which effects a chemical reaction.

Another advantageous embodiment example is that the security elementeffects an optical reaction.

Another advantageous embodiment example is that a self-luminous ink, asecurity thread, champs or metal pigments are used as a security featurewhich effects an optical reaction.

Another advantageous embodiment example is that the security elementeffects a haptic reaction.

Another advantageous embodiment example is that a logo or a Braillecharacter is used as a security feature which effects a haptic reaction.Advantageously, the security features effecting a haptic reaction areembossed into a foil.

Another advantageous embodiment example is that the adhesive itselfincludes at least a part of a security feature and/or at least onesecurity feature.

Another advantageous embodiment example is that a foil is used whichincludes at least a part of a security feature and/or at least onesecurity feature on at least one surface and/or in its interior.

Further, for achieving the object the invention discloses a data carrierwhich is manufactured according to the method described above.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiment examples of the invention are hereinafter described in moredetail with reference to the attached figure.

FIG. 1 in principle shows the procedure of folding a foil according tothe invention with reference to a two-step folding for manufacturing adata carrier. Although, a single-step or multi-step folding is alsopossible.

DETAILED DESCRIPTION OF VARIOUS EMBODIMENTS

FIG. 1 in principle shows the procedure of folding a foil 2 according tothe invention with reference to a two-stage folding. A foil 2 istransported in the direction of machine operation 4 during the method.The foil 2 here has three regions 6, 8 and 10. Each of the regions 6 and10 has several gaps 12 and 14 which were punched into the foil 2. Thegaps 12 and 14 serve for the formation of a gap, into which a module,e.g. a chip module, is inserted. The regions 6 and 8 are coated withadhesive. Before the foil 2 is folded according to the invention, twoscored lines 16 and 18 are scored into the foil 2 to facilitate thesubsequent folding. First, the region 10 is folded in the direction 20along the scored line 18, so that the region 10 comes to lie in precisefit on the region 8 coated with adhesive and is bonded thereto. Theresulting region 22 is two-ply and has the gaps 14 at its surface. Next,the region 6 is folded in the direction 24 along the scored line 16 inprecise fit onto the region 22 and bonded thereto. The result is now athree-ply foil in the region 26. The regions 6, 8 and 10 were folded inprecise fit onto each other and bonded together, so that, for example,the gaps 12 and 14 have come to lie exactly one above the other.Tensions in the resulting card cancel each other out by an odd-numberedfolding, e.g. single or triple folding in the method according to theinvention. The orientations possibly present in the at least one foilcancel each other out by folding according to the invention. A resultingbulge or a distortion of the product is avoided thereby. In addition tothe method described above it is possible to introduce in precise fitand to also bond a further foil during the folding. Therefore,constructions made of several foil layers and adhesive layers arerealizable. This is interesting in particular when gaps in differentplanes, independent of the material thickness of a foil, are necessary.At the end of the method at least one data carrier, e.g. a SIM card or acredit card is punched out from the at least one folded and bonded foil.Alternatively to the punching, any other suitable method can be used forseparating data carriers from the folded and bonded foil, e.g.separating by means of laser or water jet.

According to the invention, during the above-described procedure offolding at least one foil 2 at least one security element is arranged onat least one outer side and/or in the interior of the data carrier to bemanufactured. For reasons of clarity, a representation of a securityelement in FIG. 1 has been omitted.

The security element is supplied to the procedure described above from aroll or as bulk material.

The security element is supplied such that it is incorporated into anarea 6, 8 of the foil 2, which is coated with adhesive.

Alternatively, the security element may be embossed into at least onefoil 2 of the data carrier.

The security element may effect a chemical, optical or haptic reactionwhen used.

As a security feature which effects a chemical reaction there may beused, for example, a scented lacquer, a color indicator, a catalyst or atest strip.

As a security feature which effects an optical reaction there may beused, for example, a self-luminous ink, a security thread, champs ormetal pigments.

As a security feature which effects a haptic reaction with a user of thedata carrier there can be used, for example, a logo or a Braillecharacter.

1. A method for manufacturing a portable data carrier by means of acontinuous manufacturing method, comprising the steps: providing atleast one foil as a rolled good, unrolling at least one first foil,wherein at least the first foil is coated at least partly with anadhesive on at least one side, wherein at least the first foil is scoredon at least one side along at least one creasing edge, wherein at leastthe first foil is folded up in precise fit along at least one creasingedge and bonded, wherein the foil is folded up in the direction of theside which is coated with adhesive, wherein the side coated withadhesive is arranged on the opposite side of the foil which has at leastone scored creasing edge along which it is folded, wherein on at leastone foil at least a part of a security element and/or at least onesecurity element is arranged on an arbitrary side of the foil; whereinthe security element effects an optical reaction.
 2. A method formanufacturing a portable data carrier by means of a continuousmanufacturing method, comprising the steps: providing at least one foilas a rolled good, unrolling at least one first foil, wherein at leastthe first foil is coated at least partly with an adhesive on at leastone side, wherein at least the first foil is scored on at least one sidealong at least one creasing edge, wherein at least the first foil isfolded up in precise fit along at least one creasing edge and bonded,wherein the foil is folded up in the direction of the side which iscoated with adhesive, wherein the side coated with adhesive is arrangedon the opposite side of the foil which has at least one scored creasingedge along which it is folded, wherein on at least one foil at least apart of a security element and/or at least one security element isarranged on an arbitrary side of the foil; wherein a self-luminous ink,a security thread, champs or metal pigments are used as a securityfeature which effects an optical reaction.
 3. A data carrier which ismanufactured according to and having the features of the data carrier inthe method of the claim 1.